Itscolorful array of buttons lets users tap into 2 , 300 built - in functions , 300 of which are built - in formulas and scientific constants thatencompass the spectrum of the mathematical and scientific fields 其丰富多彩的阵列按钮,让使用者进军2300内建的功能, 300所内置的公式和科学常数,包含频谱的数学和科学领域的合作
The bubbles in diesel engine fuel injection system are studied . the frequency structure of pressure wave with bubbles bursting ， as well as relation of types of bubbles and frequency spectrum ， is expounded 采用频谱分析法对柴油机燃油喷射系统中的汽泡进行了研究，分析了汽泡溃灭造成压力波振荡的频率结构特性，并论述了汽泡与压力波及其频谱的关系。
" another principle should be that any change in the frequencies allocated to the industry must have its prior consent and no such change should be made if they would in any case result in degradation in the quality of existing signals 另一项原则是，有关频谱的任何变动应先取得业界同意，同时不能接受任何频谱变动导致现时公众接收质素降低的情况。
Every few milliseconds , a fhss signal bounces between different specific points in a designated " spread " of the electromagnetic spectrum , reducing interference from other signals and making it very difficult to eavesdrop on the transmission 每隔几毫秒， fhss信号在指定“扩展”的电磁频谱的不同频率点上跳动，减少其它信号的干扰，使它在传输中难以被窃听到。
At the other end of the technological spectrum , the american bible society produces an audio device , powered by a battery or hand crank and no bigger than a couple of cigar boxes , that can broadcast the bible to a crowd of a hundred 而在技术频谱的另一端，美国圣经公会生产了一种音频设备，采用电池或手摇发电，不过两个雪茄盒大小，就能向上百的人群播放圣经。
The algorithin adopts two well - known ideas called spread spectrum and quantization , first applies a frequency transformation on the motion signal , and then embeds watermark bits by quantizing proper intermediate frequency coefficients 本章的算法应用了量化与扩展频谱的思想，首先对运动信号进行频域变换，在dct域上选择一定数量的中频交流系数量化嵌入水印信息。
Operating in the low and middle bands of the radio spectrum , one or two rf mems analog channels can create short - range ad hoc networks in any band where licensed users agree to rent , share or otherwise barter for radio spectrum 处于无线电频谱的中低频带时，只要是在使用者同意租用、分享或交换的频带上，一或两个rf微机电系统的类比频道，就能建立起短距离特定网路。
Because msk phase is continuous , the rolloff velocity of the msk spectrum to the psk was improved greatly . on the other hand , if the channel ' s bandwidth is presented , the data transmission rate of msk is better than that of bpsk . 2 由于msk相位连续，它相对于psk频谱的滚降速度有了很大的改善；另外在给定信道频带的时候，它比bpsk传输的数据速率高，每秒能传输更多的比特。
While minor control signals are needed to realize the control object , relatively large disturbing signals are needed to detect the system status . dual adaptive control , however , can eliminate the conflict between control and learning satisfactorily 控制目标的实现要求控制信号平缓变化，同时对系统参数不确定性的学习又要求维持一定幅值和频谱的输入信号以起到充分激励的作用。
Point on the is again and again the s high segment is with of the low segment at oppositely loudly the degree objective relation for exsitting of ; also point a voiceses the way the way of high fidelity and left voice similar to signal for the way s of right voice of . equilibrium 指在音频频谱的高段和低段之间在相对响度上所存在的客观关系也指双声道立体声左声道和右声道之间的信号的相同平衡。
